Broken lower door wheel
We may have a good match for your roller, but I can't tell what you have from this photo. In order to help, I need to see the roller out of the door. When you do remove it, please show me the back end, top, and sides. Dimensions would also be a huge help.
That may be necessary, yes. Most doors allow you to just unscrew the roller and take it out, but some older doors require you to unscrew and then tap off the bottom door rail. If that's the case with your door then I recommend using a wood block and mallet to gently tap it off.
If you aren't familiar with doing this kind of thing, or if you're nervous about accidentally breaking the glass, then you may want to consider contacting a local professional to do it for you.
Thank you! This is a huge help. So, the best match we have for your roller is our 81-269, but you'll notice right away that the back screw tab sticks up at a 90 degree angle while yours lays flat. I actually think your tab was originally the same as ours but that the installers bent it back during installation. That's actually a very common practice and we used to do that a lot with the 81-269 back when we installed doors.
With that in mind, the 81-269 will be my recommendation, but you will have to bend the tab back yourself before you install it. What you want to do is hold the "base" of the tab with a pair of needle nose pliers, then use another pair of pliers to bend the rest of the tab flat. It will take a little elbow grease but not as much as you'd think.
One important thing to note is that we cannot accept returns of products that have been altered in this way, so before you place your order you should carefully look over our specs for the 81-269 to ensure everything is in alignment. Can't hurt to triple check the small details like that.
I hope this information helps. Please let me know if you had any questions about this product or my proposed solution.